code: def setUp(self, swagger_client_factory) -> None:
      self._get_swagger_client_mock(swagger_client_factory)
      self.backend = HostedNeptuneBackendApiClient(API_TOKEN)
      self.leaderboard = HostedAlphaLeaderboardApiClient(self.backend)
      self.exp_mock = MagicMock(
          internal_id="00000000-0000-0000-0000-000000000000"
      )
  
file_path: neptune-client/tests/unit/neptune/legacy/test_alpha_integration_backend.py
imports: import time
  import unittest
  from typing import List
  import mock
  from freezegun import freeze_time
  from mock import MagicMock
  from neptune.legacy.internal.api_clients import HostedNeptuneBackendApiClient
  from neptune.legacy.internal.api_clients.hosted_api_clients.hosted_alpha_leaderboard_api_client import HostedAlphaLeaderboardApiClient
  from neptune.legacy.internal.channels.channels import ChannelIdWithValues, ChannelNamespace, ChannelType, ChannelValue
  from tests.unit.neptune.backend_test_mixin import BackendTestMixin
label_desc: Use image node_id 1 for calling the TestAlphaIntegrationNeptuneBackend obj's underlying member method code with example usage: obj.setUp(swagger_client_factory) without return types